Police found nothing suspicious or "of evidentiary value" at the North Warren Regional High School, North Warren Regional Middle School or Blairstown Elementary, Losey said. The schools were searched by township police, New Jersey State Police and the Morris County and Somerset County sheriff's departments, he said.

Police reported Tuesday that a .22-caliber round had been found Friday by staff at the elementary and high schools. The bullets were found in the girls' locker room at the high school and in a bathroom at the elementary school. Both were in plain view.

Losey said that no immediate threat was present, but the search was held this morning because police and the school administration "felt that it was necessary to ensure the safety and well-being of the staff and students at all three schools."

Authorities searched the schools prior to the start of the school day to "minimize any fear and apprehension for both parents and students," he said.